# SDR DXTA2024031811209

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 15, 2024
- Submitted: March 18, 2024
- Operation: Air carrier
- Aircraft: [N409QS](https://openairdocs.org/aircraft/N409QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500431
- Aircraft time: 5,874 hours, 4,604 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 7450LS00
- Part serial: 006553
- Condition: Faulty
- Location: Emergency Lights
- Stage of operation: TX
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2024031811209

## Discrepancy

CABIN EMERG LIGHT: ALL EMERGENCY LIGHTS ARE ILLUMINATING WITH THE SWITCH IN THE ARMED POSITION. //SIGNOFF// PERFORMED OPERATIONAL TEST OF EMERGENCY BATTERY AND FOUND #2 BATTERY FAILED FUNCTIONAL TEST IAW P300 AMM 33-52-00. PERFORMED REPLACEMENT OF #2 BATTERY WITH ONW IN NEW CONDITION IAW PHENOM 300 AMM 33-52-01. PERFORMED OPERATIONAL CHECK OF EMERGENCY BATTERY SYSTEM IAW PHENOM 300 AMM 33-52-00. NO DECECTS NOTED AT THIS TIME. OFF P/N 74550LS-00 S/N 006553

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.